This course provides an introduction to converged voice and data networks as well as the challenges faced by its various technologies. The course presents solutions and implementation considerations to address those challenges. In this course, students will learn about CallManager Express (CME) architecture, components, functionality, and features. They will also learn some Voice over IP (VoIP) and Quality of Service (QoS) technologies and apply them to a CME environment. The focus of the course is Call Manager Express, Connecting to a PSTN network, connecting from one router across a WAN to another router running CME, connecting from one CME enabled router to another CME enabled router.